Two shell water gas set



March 26, 935.

J. AQPERRY ET AL Two-SHELL. wATpR GAS SET Filed Deo. 9, 1930 2 sheets-sheet 1 www March 26, 1935.

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J. A. PERRY ,Er ALV TWO-SHELL WATERy lGAS *Filednecv. 9,"1950 y WL Patented Mar. 26, 193s l V1,99{tirar}'g Improvement Company: Phil corporation of Pennsylvania? i Application apparatusr of the invention.v whileN itA may be otherwise used, is particularly. adapted .for the 5 manufacture of carburetted Water gas.y when heavy yoil is used as the `c'arburetting material. By heavy oil I mean to include those Voils which deposit large quantities of carbon in thecheck' erbrick when .vaporized inthe ordinary carburetter., As an example of such oil mention,` maybe madeofsoV-called Bunker C oil. 1 i v In the use ofl such an oil a large quantity of heat is required for vaporization, but due-to the characteristics'of the oil, less heat is required for fixing the oil vapors than ;is the .cesev withor'di-g narygasoil.; i The bestmethod of employing such oil islto vaporize it duringjthe steam run on thejgtop of the generator fuelvbed by spraying itontoa zone which hasbeen heated during'the air blast step by secondary airwhich is applied `marginally adjacent the top of the fuel ,bed and consumes yproducer gas generated bythe primary air ap,

plied to the base of they fuel bed.' Y

The vaporization of the oil on the rtop of .the fuel bedf. and the smaller quantityjof heatfref quired -for xingmakes itdesirable *to depart froml the standard three shell carburettedwater gaSSe- .1-111 I.

According to the present invention a two shell set isprovided which is cheaper to construct. and is morek compact than the ordinary carburetted water gas set without any sacrifice in efficiency of operation. e

The invention will be described in connection with the attached drawings which forma partA of rthis specification and which show forms of the apparatus chosen for villustration and in which, f

Figure 1 shows one form of the apparatus in partial elevation and partial vertical cross section.

Figure 2 shows a modification of the apparatus of Figure 1 in partial elevation and partial vertical cross section. Y

Referring to Figure 1,

1 generally indicates the Water gas generator f armere-fs 'l pipes?. 4v'Ihisse'condary air produces. themar-V ginal hot zonefindicatedat 8.

The generator vis further. provided Withl theioil supply means 9 includingzthe sprayrlO Vwhich is adaptedfto spray oil on the hotzone ,8, The generatorv is valso provided withthe gas offtake 1.1, leading toy the superheater l2y and: with` the` gas offtake 13..1eading from the 'baseof the fuel bed through the three-way valve 141 toY the lwashbox 15.". i The superheater Y is also connected Ito the washbox-15ethrough thejathreev-,Way valve 14 by connection 16.*117 isa steamsupplymeans-forv downrunning. 18 is a gas o'iftake from y,the wash"- boxftofrstorage. 19 is ,the stack valve. 4 j :J-As: shown" the superheater is preferably ,conivstructed- Withzthe provisionfofthe chamberfary ranged .below the checkerbrick, 21, .and into which This ligure shows-a modiiication4ofthe apparatus` of `Figure v,1 n whichthereais provision of a separate v.dust collector instead of the dust collectinglchambenin the base cfr-.the superheater.

'Ihesame numberslapply tojidentical ex-y cept ,thatafinligurel 2 0fi s the separate dust col-4 generator leads downwardly and tangentially and from which connection 1l leads olf tangentially to the superheater 12. The dust collector-is provided With the hopper 22 and the door 23 for the removal of dust and fuel particles. n f

In operation it will be obvious to those skilled in the'art, that. a wide variety of gas making cyclesmay be employed. One such cycle chosen for illustration will be described. VThe generator fuel bed is blasted'with air supl plied at 3, the resultant combustion of the fuelstoring heat in the fuel bed. yThe producer gas generated by this primary blast is burned in contact with fuel in the top of the fuel bed, by secondary air introduced marginally at 5, 6 and 7; producing the marginal hot zone 8 and storing heat therein. The resultant blast products pass through the gas oitake 11, through the dust collector (chamber 20 in superheater 12 in yFigure 1 and the separate dust collector 20 in Figure 2).. In the dust collector the fuel particles blown over from the generator fuel bed are de- 'i155 leu",

Vposited by centrifugal action to avoid clogging the checkerbrick. s

From'the dust lcollection the vblast gases pass kthrough the Vsuperheater vcheckerbricl: storing .their heat therein and theneegto atmosphere through stack valve 19.

. a After sufiicientI heatahas .fbeensto'rod-.by the mastingioperaun; the; an bias: the stackyalve shut, andan uprun is made with of the fuel bed, if, Aistarburetted byfari L through oil supply means-andfoilfsprayfl0, whichsprays oil onto the ginal zone 8f The heat storediia-mfzt0z, gether with the heat of the uprun water;;a.s,V

Y .vapori'zes the'oil. YThe resultantoil vapors pass with the watergas, throughoiftake 11;and"tl'e checkerbrick where the oil vapors are Vxedr l The resultant@ carburetted 'water V'gas l passes through iandthencethrough otake 18 toorage.

After the uprunreve'rsing -valve 14 is: reversed x andi a:V dow-nrunk -ismade with." steam. admitted through 17, the steamv passes throughl the superheatr--clieckerbricky beinggnzsuperheatedand thence'by wayof the dust collecting chamber Y and'con-nection 11` totheV top10! thefuel bed and down through it,Vv generating vvblue. waterv gas which passes by Awayv connection-13 and reversing valvefM/ftoiwashbox'115 and thence to storage VYthrough ofltake 18.13* Si?" The superhea.ted` Y V through theftop of thefuel bed esslstsgindrying up', colxing Uand consuming the residues of the, oil

" 'sprayed on the lrnar'g-irialfhot.' zone the eillcientinoperation',rand isgpartie'ulaifly Y N steamuprun:I "Ihe'remainder of are f V'consumed duringethe "succeedingA air "blasting f oprfation.-.fl Y '1 ",AifterL the steam: downrun ashort 'steamuprun is frnadeas-afpurge andthe eycle'repeated; 'I Ther-applicant'is aware ofthe fact that two shell sets have previouslybeeneprroposedlf:mi emmoyeu? vin Y- carburemdf watery gas manufacture.

' These twosh'ell sets havernotincluded fthe means for busting the topY 'of the-:united: marginally with secondary air,L and means fox-sprayingoil l'onto this marginal hotvzone. I t is theinclusion of these means Ywhich'perrnitstheprovisi'on or! a twoshell set which iseconomioal iniconstruction,

downrun: s

for the use of heavyV oil asfcarburetting material.

vIt is desirablezto' provide dust collectionmeans in this set, as the provision of ther` secondary air increases the quantity of gas passing through the top oi' the fuel bed. .Y This results in an increase n ,willi be obvious to these, ARuledfiritxe art that modifications may be made in 'the apparatus 1 described without departing fromV the spirit of this invention.

- 1. A centrifugally operating 'singlegsheug `lust fseparating,"dust collecting, and heat storing dev for in the,l manufacture e of combustible zgas..saidzdeyi comprising in-'combination, a`

single shell, ariempty dust vcollecting vessel havl ing an open topin the llower portion of said shell,n A dust collectorand thence through the f 'f- 20 aninletr for dust laden gases entering said vessel tangentially and adjacent its'upper portion,4an

, Y 'outlet'.for, dustfadjacent bottom. Vportion` of oiftake 16 and reversing -valve 111"tothe-fwashboxVw Y A rial mounted'inj 'said shell directly above said vdu'st 's V,m'rllecting'vessel so thatjthe top of Isaiddust. Y

tolsaidsvessel containing refractory material, and Vmeans for letting off gas.-.from-;thentop.-of saidf.

said vesseL. a vessel containing refractory matec'ollectirrgt,vessel forms unobstructed :conduit sion means and steam admission meansfandgas oitake'means at tlfu'e-bottom-Sofr said' generator,

means `for admitting secondary l air adjacent the upper'margin ofthefuelbed in said generator, means forvadmitting oilV directly onto the topo! V the'fuel bedan'empty dust collectingV vessel operating by centrifugal action,v a: gas Vconduit leadingsi'rom' the top yof said generator'andenterl ingsa-id dust collecting vessel tangentialh?, Y a yes'- sel containing refractory material niivuntedv on Y off salddust collecting vessel'a.'ncl-ghaving!` un'- dust' collecting vesselfbeneath said tangential in' letand beneath the connection between said'dust fractory material.

` EDWINLfHALL. r

Vcollectingvessel `andsaicl'vessel vcontaining vrel i so A JOSEPH a- PERRY;UT 

